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Surface enhanced infrared absorption in dielectric thin films with ultra-strong confinement effects

Yann Chalopin 1 Marc Hayoun 2 Sebastian Volz 1 Hichem Dammak 3, 2
1 EM2C - Laboratoire d'Énergétique Moléculaire et Macroscopique, Combustion
2 LSI - Laboratoire des Solides Irradiés
3 SPMS - Laboratoire Structures, Propriétés et Modélisation des solides
Abstract : By formulating a microscopic description of the non-local dielectric constant, we have investigated the mechanisms of infrared absorption in dielectrics thin films by molecular dynamics simulations. We found that light absorption in dielectric slabs does not occur predominantly at the polaritons resonances but through anomalous surface modes extremely confined in space. This demonstrate that any macroscopic description of electrodynamics in dielectrics breaks down at the nanoscale.
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https://hal-centralesupelec.archives-ouvertes.fr/hal-01932700
Contributor : Hichem Dammak <>
Submitted on : Friday, November 23, 2018 - 11:45:08 AM
Last modification on : Friday, July 31, 2020 - 9:24:08 AM

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Yann Chalopin, Marc Hayoun, Sebastian Volz, Hichem Dammak. Surface enhanced infrared absorption in dielectric thin films with ultra-strong confinement effects. Applied Physics Letters, American Institute of Physics, 2014, 104 (1), pp.011905. ⟨10.1063/1.4860989⟩. ⟨hal-01932700⟩

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